Martin A. Putnam
99Patents
27h-index
49Co-inventors
88Inventor score
Filing activity: Feb 17, 1998 → Apr 1, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7872804B2 | Encoded particle having a grating with variations in the refractive index | Physics | 100 | Active |
| US6422084B1 | Bragg grating pressure sensor | Physics | 91 | Expired |
| US6229827A | Compression-tuned bragg grating and laser | Physics | 86 | Expired |
| US6470036B1 | Tunable external cavity semiconductor laser incorporating a tunable bragg grating | Electricity | 74 | Expired |
| US7106513B2 | Diffraction grating-based encoded particle | Physics | 66 | Expired |
| US7126755B2 | Method and apparatus for labeling using diffraction grating-based encoded optical identification elements | Physics | 64 | Expired |
| US6490931B1 | Fused tension-based fiber grating pressure sensor | Physics | 52 | Expired |
| US7164533B2 | Hybrid random bead/chip based microarray | Physics | 50 | Expired |
| US6826343B2 | Multi-core waveguide | Physics | 48 | Expired |
| US6956687B2 | Optical blocking filter having an array of micro-mirrors | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6820489B2 | Optical differential pressure sensor | Physics | 43 | Expired |
| US6982996B1 | Large diameter optical waveguide, grating, and laser | Electricity | 43 | Expired |
| US6310990A | Tunable optical structure featuring feedback control | Physics | 40 | Expired |
| US6249624A | Method and apparatus for forming a Bragg grating with high intensity light | Physics | 40 | Expired |
| US7399643B2 | Method and apparatus for aligning microbeads in order to interrogate the same | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6519388B1 | Tube-encased fiber grating | Physics | 38 | Expired |
| US6915048B2 | Fabry-perot filter/resonator | Physics | 38 | Expired |
| US6452667B1 | Pressure-isolated bragg grating temperature sensor | Physics | 37 | Expired |
| US7619819B2 | Method and apparatus for drug product tracking using encoded optical identification elements | Physics | 36 | Expired |
| US7349158B2 | Diffraction grating-based encoded micro-particles for multiplexed experiments | Physics | 35 | Expired |
| US6621957B1 | Temperature compensated optical device | Electricity | 35 | Expired |
| US6363089B1 | Compression-tuned Bragg grating and laser | Physics | 32 | Expired |
| US7092160B2 | Method of manufacturing of diffraction grating-based optical identification element | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6668656B2 | Optical sensor having differing diameters | Physics | 29 | Expired |
| US6233373A | Optical spectrometer with improved geometry and data processing for monitoring fiber optic bragg gratings | Physics | 29 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.